162043813 has 8 divisors (see below), whose sum is σ = 173505240. Its totient is φ = 150796800.

The previous prime is 162043807. The next prime is 162043859. The reversal of 162043813 is 318340261.

162043813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 804609 + 161239204 = 897^2 + 12698^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 162043813 - 2¹⁷ = 161912741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162043873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52038 + ... + 55063.

It is an arithmetic number, because the mean of its divisors is an integer number (21688155).

Almost surely, 2^162043813 is an apocalyptic number.

It is an amenable number.

162043813 is a deficient number, since it is larger than the sum of its proper divisors (11461427).

162043813 is a wasteful number, since it uses less digits than its factorization.

162043813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107207.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 162043813 is about 12729.6430821921. The cubic root of 162043813 is about 545.1853175586.

The spelling of 162043813 in words is "one hundred sixty-two million, forty-three thousand, eight hundred thirteen".